/Engine/Plugins/Experimental/Mutable/Source/MutableRuntime/Public/MuR/System.h
Only valid between BeginUpdate and EndUpdate
[Ptr](API\Plugins\CustomizableObject\MuCO\Ptr)< const [Image](API\Plugins\MutableRuntime\MuR\Image) > GetImage ( [Instance::ID](API\Plugins\MutableRuntime\MuR\Instance\ID) InstanceID, FResourceID ImageId, int32 MipsToSkip, int32 LOD )